I need last years agi on my 2018 tax return

[VolvoGirl]

You need your 2018 AGI to efile 2019. The AGI is on 2018 1040 line 7.
https://ttlc.intuit.com/community/agi/help/how-do-i-find-last-year-s-agi/01/25947

Or see the screen shot by critter on this one,
https://ttlc.intuit.com/community/taxes/discussion/re-i-m-order-to-complete-my-taxes-it-is-asking-me...

[MoniqueLO]

If you used TurboTax last year, you can access your return by logging in using the same TurboTax account that you used in 2018. Please follow the steps provided below.

1. Go to Tax Home in the left menu.

2. Under Your tax returns & documents, go to Download/print return (PDF) (select Show if not visible).

https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-access-my-prior-year-return/00/270...

You can also get your AGI from last year by ordering a free transcript of your 2018 return or purchasing a full copy from the IRS. Please see below for more information. 

https://ttlc.intuit.com/community/agi/help/how-do-i-find-last-year-s-agi/00/25947